Multiplicity of ground states in quantum field models: applications of asymptotic fields
Hiroshima, Fumio
arXiv, 0402075 / Harvested from arXiv
Text on arXiv
The ground states of an abstract model in quantum field theory are investigated. By means of the asymptotic field theory, we give a necessary and sufficient condition for that the expectation value of the number operator of ground states is finite, from which we obtain a wide-usable method to estimate an upper bound of the multiplicity of ground states. Ground states of massless GSB models and the Pauli-Fierz model with spin 1/2 are investigated as examples.
Publié le : 2004-02-27
Classification:  Mathematical Physics 
@article{0402075,
     author = {Hiroshima, Fumio},
     title = {Multiplicity of ground states in quantum field models: applications of
  asymptotic fields},
     journal = {arXiv},
     volume = {2004},
     number = {0},
     year = {2004},
     language = {en},
     url = {http://dml.mathdoc.fr/item/0402075}
}

Hiroshima, Fumio. Multiplicity of ground states in quantum field models: applications of
  asymptotic fields. arXiv, Tome 2004 (2004) no. 0, . http://gdmltest.u-ga.fr/item/0402075/